Glassware forming apparatus



Feb. 22, 1949. BANNER 2,462,806

GLASSWARE FORMING APPARATUS Filed Dec. 21, 1943 Y 7 Sheets-Sheet 1 Feb. 22, 1949. I E. DANNER 2,462,806

GLAS SWARE FORMING APPARATUS Filed Dec. 21, 1943 '7 Sheets-Sheet 2 x mm/3 Fig. 2

Feb. 22, 1949.

E. DANNER GLASSWARE FORMING APPARATUS 7 Sheets-Sheet 5 Filed Dec. 21, 1943 fima/zmanm W n I n Feb. 22, 1949. DANNER 2,462,806

GLASSWARE FORMING APPARATUS Filed Dec. 21, 1943 7 Sheets-Sheet 4 v gnome: fidwa/cdoganvwc Feb. 22, 1949. BANNER GLASSWARE FORMING APPARATUS Filed Dec. 21, 1943 7 Sheets-Sheet 5 Fig. ll

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Feb. 22, 1949. E. DANNER GLASSWARE FORMING APPARATUS 7 Sheets-Sheet 6 Filed Dec. 21, 1945 bil Fig. I4

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Feb. 22, 1949. E. DANNER GLASSWARE FORMING APPARATUS 7 Sheets-Sheet '7 Filed Dec. 21, 1943 Cltkornez w Patented Feb. 22, 1949 UNITED STATES PATENT OFFICE GLASSWARE FORMING APPARATUS Edward Danner, Newark, Ohio Application December 21, 1943, Serial No. 515,089

2.6 Claims. 1

This invention relates to glassware forming apparatus and, more particularly, to apparatus for forming a stream of molten glass into hollow glass tubing.

-Heretofore glass tubing has been manufactured by the formation of a downwardly moving cylinder from a continuous stream of molten glass flowing from an opening in the bottom of the forehearth of the glass-melting tank or from an opening in the bottom wall of the glass-melting tank. Where the glass is first melted in a tank and is permitted to flow into the forehearth and is then drawn from the forehearth, the temperatures prevailing in the forehearth are not of such character as to render it particularly difficult to extend supporting members for the forming mechanism and members carrying cooling fiuid and blowing air upwardly through the forehearth. However, where the glass is drawn from the container in which the glass is melted, the temperatures prevailing therein are sufficiently high to make it undesirable to extend supporting members and fluid pipes upwardly through the tank. The present invention is directed primarily to the provision of glassware forming apparatus which is of such character as to render it unnecessary to extend any of the drawing or forming equipment and the supporting mechanism above the bottom wall of the forehearth or tank.

In accordance with the present invention, I provide glassware forming apparatus in which the element or elements for forming the molten glass into ware, the supporting mechanism therefor, the blow pipe for supplying air to the interior of the formed tubing, the pipes for supplying cooling fluid to and withdrawing it from one of the shaping elements, and the apparatus for effecting adjustments of the various parts are positioned below the molten glass in the forehearth or tank and do not extend upwardly therethrough. My invention is not limited to the use of any particular type or types of forming means for forming the molten glass into the ware, but includes the use of one or more shaping elements either alone or in combination with means for sizing the ware internally or externally during the forming operation. In one embodiment shown in the drawings, a single shaping element is utilized, whereas in the other embodiments two or more shaping elements are employed, including an internal sizing member. In all of the embodiments shown in the drawings the principal shapingelement is of the general type shown and described in-my copending ap- 2 plication Serial No. 380,179, which has now eventuated into Patent No. 2,390,925. This shaping element embodies a plurality of nesting coaxial shells which are spaced radially fromeach other and constitutes a substantial departure from the types which have been commercially used heretofore. Where this type of shaping element is employed, glass tubing having a relatively thick wall can be formed and both thick and thin-walled tubing can be drawn at appreciably higher rates of speeds than those employed at the present time.

In the accompanying drawings I have 'shown, for purposes of illustration only, several embodiments of my invention. It will be understood, however, that my invention is not limited to the particular embodiments but may be embodiedin various types of apparatus within the scope of the claims appended hereto.

In the drawings,

Figure 1 is a central vertical section through a tube-forming apparatus of my invention installed under a glass-melting tank, certain of the parts being shown in elevation;

Figure 2 is a horizontal section taken plane of line II--II of Figure 1;

Figure 3 is a partial vertical section taken along the plane of line III-III of Figure 2;

Figure 4 is a sectional view showing a por tion of Figure 1 to enlarged scale with additional parts in section;

along the Figure 5 is a horizontal section taken along the plane of line V-V of Figure 4;

Figure 6 is a vertical central section through one end of the transverse duct extending through the block forming a part of the bottom of the tank;

Figure 6A is a partial vertical section along the plane of line VIA-VIA of Figure 6;

Figure 7 is a partial horizontal section taken along the plane of line VIIVII of Figure 6;

Figure 8 is a partial horizontal section taken along the plane of line VIII--V1II of Figure 4;

Figure 9 is a partial vertical section taken along the plane of line IXIX of Figure 1;

Figures 10 and 10A are partial horizontal sections taken along the planes of lines XX and XA--XA of Figure 9;

Figure 11 is a vertical central section through tube-shaping means generally similar to that shown in Figures 1, 4 and 5, but difiering slightly therefrom in detail;

Figure 11A is a section showing a portion Figure l I to an enlarged scale;

Figure 12 is a perspective view of a detail;

Figure 13 is a view similar to Figure 4 showing a modified construction;

Figures 14 and 15 are partial horizontal sections taken along the planes of lines XIV-XIV and XVXV, respectively, of Figure 13;

Figure 16 is a view similar to Figure 4 showing a further modification.

Referring in detail to the drawings and for the present to Figures 1 through 3, I provide a tank l8 adapted to hold a supply of molten glass, having a bottom wall ll having an openin ll therein. The tank is supported on columns 12 connected by beams i 3. Diagonal beams H! extend inwardly from the columns to a frusto-conical ring l5. Auxiliary beams H3 extend between adjacent beams I3 and support the diagonal beams Hi. Other auxiliary beams I! extend between adjacent beams IS and support auxiliary beams i8 extending normal to the beams I 3 at their midpoint. The tank It! is constructed in the known manner by laying up refractory brick on the structural support provided by the columns I2 and the main and auxiliary beams, within the usual binding which may be fabricated from structural members and plates.

A refractory block l9, which abuts the bottom wall of the tank, is positioned within the ring 45 and has a center opening 20 adapted to align with the opening Ii in the bottom of the tank. The block I9 is provided with segmental straps 2! extending circumierentially thereof and bolted together. The block is supported on hanger bars 22 dependin from brackets 23 spaced circumferentially of the ring 15. The bars 22 extend between the spaced ends 24- of the straps 2|. The block i9 may be, and preferably is, formed of two pieces for constructional purposes.

A passageway 25 extends transversely through the block I 9 and intersects the hole 20 therethrough. A metal tube or duct 21 having closed terminal portions 28 removably secured thereto is positioned in the passageway. The portion of the tube within the hole 26 is provided with a protective mass of refractory material 26 set into the block. The block is preferably split along a median horizontal plane to permit the insertion of the mass 26 and the tube 27. An air supply pipe 29 communicates with the tube 21 adjacent one end thereof and an outlet pipe near the opposite end.

Pipes 3! and 3m connected by a T fitting 3lb extend longitudinally through the tube 21, having both their outer ends blanked off as shown in Figure 6. Near the outer ends of the pipes pins 32 projecting laterally therefrom rest on wedges 33 carried by a slide 3 3. The fitting 3lb has pins 32 cooperating with wedges 33a. The slide is movable longitudinally in the tube 27 by a screw 35 threaded through the end of one terminal 28 and swiveled to the slide at 36.

A water inlet pipe 6 extends upwardly through a stufiing box 37 depending from one end of the tube 21 and makes connection with the pipe 3| near. the outer end thereof. A water outlet pipe 38 similarly extends through a stufling box 39 depending from the other end of the tube 21 and makes connection with the outer end of pipe 31a. The stuffing boxes 3? and 39 are provided with packing and glands whereby the pipes 3i and 310. may be adjusted vertically in the tube 21 without leakage of air from the interior thereof. It will be apparent that rotation of the screw 35 by means of its hand wheel will cause the slide 34 to move in one direction or the other to raise or lower the pipe 3| by means of the wedges 33 and 33a.

the hole 20 and is provided at its lower end with a sizin mandrel 42. The mandrel comprises a metal cylinder 43 secured to the pipe ii having an external layer of graphite 46 applied thereto. A division plate 45 extends longitudinally of the pipe il defining separate parallel passages therethrough. .A slot 46 is formed on one side of the pipe on the interior of the cylinder 43. The pipe 4| is blanked off at its lower end on the side on which the slot 56 is formed. Cooling fluid supplied by the pipe 6 thus flows through pipe 3!, down the right-hand side of pipe H and into the cylinder 33. When the cylinder is filled, fluid flows upwardiy through the left-hand side of pipe 'l through pipe 31a and thence through the outlet pipe 38.

A tubular shield ll! depending from the tube 27 and communicating therewith, surrounds the upper end of the pipe '55. The tube is provided with an external shield of refractorymaterial. A flange $8 is secured to the lower end of the tube 21. Centerin ribs Ma on the pipe 4| keep iticoaxial with the tube 47.

A sleeve 39 secured to the pipe 4! just below the flange 48 has radial vanes Ell supporting the inner shells 5i and 52 of a multiple-shell glassshaping means, the details of which are best shown in Figure 11. The upper and lower edges of the vanes '56 are beveled adjacent the shell 5| as indicated at 53. The shell 52 is. supported on the shell 5! by spacer blocks 54a one of which is shown in Figure 12 in a manner which will be explained in greater detail by reference to Figure 11. The remaining shells 54 of the glass-shaping means are supported from the exterior thereof in the manner now to be described.

A forming chamber 55 suspended below the block i8 on hanger bars 56 depending from the structural frame on which the tank It is carried, comprises an open-ended hollow cylinder of refractory material laid up within an enclosure ineluding top and bottom rings 57a and 51b and sheathing plates 51c. Brackets 58 projecting from the upper ring are engaged by the hanger rods 55. A bearing ring 59 is disposed within the upper ring 51a and supports a ring Bil having radial webs El resting thereon. Centering screws 62 threaded through the ring 57a engage the webs 6!. The ring 6!? has an internal flange 63 adjacent the bottom thereof. The outer shells 5d of the shaping means are supported on balls 6d resting on the flange 63. The outermost shell 56 has an upper external flange 55 engaging the balls .and each of the inner shells 54 is supported on the next outer shell by spacers such as that shown in Figure 12. V v V The remaining details of the forming chainber 55 are generally similar to. those shown in my copending application, SerialNo. 423,255, filed December 17, 19%1. A fuel-supply manifold 65 is supported below the chamber on bracket '57 secured thereto and is provided with burners 63 for firing upwardly and around the interior of the chamber. 'A frusto-conical deflector ring 69 is carried on rods 18 extending upwardly from a Y-shapedarm TI. The -armis carried on a rack 72 slidable within a tube 73 on the exterior of the chamber. A housing id projecting from the tube 73 has apinion shaft journale d therein provided with a pinion meshing withthe rack 12 and with ahand crank whereby the ring 69 may beraised orlowered. r

A pipe 4i depends from the fitting 3Ib through For controlling the draft upwardly through the chamber 55 and outwardly between it and the block I9, I provide a ring damper 15. The damper is supported on brackets 15 carried by sprocket wheels 71 threaded on studs 18 projecting upwardly from the ring 51a. The sprockets 11 are connected by a chain I9 which also travels over idler sprockets 8D. The chain is driven by a sprocket mounted on a shaft 8| threaded in a hub 82 secured to the exterior of the chamber 55 (see Figure 3). Rotation of the shaft 8| causes it and the brackets 16 to move up or down, thus raising or lowering the ring 15.

Figures 11 and 11A show a slight modification of the glass-shaping means of Figure 4, the only difference being that in the shaping means 86' of Figure 11 all the outer shells 54 are carried on the innermost shell 5| by means ofspacer blocks like that shown in Figure 12. As there illustrated, these spacers comprise a block notched and beveled on the inside at the upper end and on the outside at the lower end. When positioned as shown in Figures 11 and 11A the spacers serve to support each shell on the next inner shell, each shell being provided with an internal flange 33 and an exterior intermediate band 84. That is to say, the spacers on the outside of each shell rest on the band 84 thereof and support the next outer shell by the engagement therewith with its flange 83. The notched and beveled ends of the spacers facilitate division of the descending annular glass stream and reunion of the several portions thereof. In other respects, the shaping means of Figure 11 is similar to that of Figure 4 and corresponding parts are designated by the same numerals.

In the operation of the apparatus described above, molten glass from the tank l flows downwardly from the bottom opening thereof through the hole 20 in the block I9 and around the refr-actory mass 25 which protects the tube 21. The descending stream is divided by the tube and its protective refractory material but the portions thereof reunite as they flow downwardly around the tube 41 and onto the flange 48. The latter causes the diameter of the stream to increase so that glass flows downwardly through and around the shaping means constituted by the shells 52 and 54 and thence over the sizing mandrel 42, as indicated in chain lines at 85 in Figure 1. The tubular stream of glass thus produced may be drawn into tubing of the desired size and wall thickness depending upon the size of the mandrel, the rate of draw and the rate at which glass flows downwardly from the tank.

As previously indicated, cooling water is circulated through the sizing mandrel 42 and air pressure is maintained within the tubular glass between the tube 41 and the mandrel 42. The burners 68 supply the heat necessary to maintain the glass Within the chamber 55 at the desired viscosity. The mandrel 42, of course, imparts to the tubing its final shape and size. The mandrel 42 and the shell 52 may be adjusted vertically relative to the shaping means by turn ing the screw 35 to actuate the slide 34 as already explained. This adjustment permits regulation of the flow and consequently of the wall thickness of the tubing. It also permits shutting ofi of the fiow of glass when desired. The slide 34 may be moved horizontally to a sufiicient extent to bring the upper end of a part of the shaping means 86 into contact with the block I9, thus shutting off the supply of glass to the shaping means except for a small amount which will pass around the flange 48. Regulation of the glassflow is effected by adjusting at least a portion of the shaping element to an intermediate position in the same way.

Figures 13 through 15 illustrate a modified form of the invention which is adapted for producing tubing of smaller diameter than that for which the apparatus described above is intended. With certain exceptions to be described in detail those parts of the modified formwhich are similar in construction to the embodiment already illustrated are designated by corresponding num: erals. The elements of the modified form which are similar in function to elements of the form first described but-differ slightly therefrom in construction are designated by the same reference numerals primed.

The modified apparatus differs from the apparatus previously described principally in the details of the shaping means indicated generally at 8B". The forming chamber 55' is somewhat deeper relative to its diameter than the chamber 55, but is mounted in the same way as the latter and is provided with similar associated parts. The shaping means 86" is composed of a plurality of radially spaced coaxial shells with spacers 54a therebetween at circumferentially spaced points, each shell being supported on the next inner shell. The innermost shell is carried on a sleeve 81 secured to the pipe 4| depending through the tube 41 from the pipes 3| and 3|a in the duct 21. The sleeve 81 has longitudinal slots 88 on the interior thereof whereby air under pressure delivered to the duct 21 through pipe 29 flows downwardly along the pipe 4| and into the space within the annular stream of glass indicated in chain lines at 89. The sleeve 81 also supports a preliminary shaping means in the.

form of .a frusto-conical shell 90 disposed above the shaping means 86". The shell 90 is supported on radial webs 9| extending inwardly therefrom to the sleeve 81.

The pipe 4| is provided with final shaping means in the form of a sleeve 92 of graphite or the like extending upwardly from its lower end. The sleeve is supported on a disc 93 secured by a screw 94 to a plug 95 welded in the end of the pipe. The pipe 4| has a center division plate 45 terminating short of the lower end of the pipe and defining inlet and outlet passages for cooling fluid in the same manner as the plate 45 of Figure 4. It will doubtless be readily understood from the previous explanation of the embodiment first described, that a stream of molten glass descending through the hole 20 in the block l9 divides in two parts which pass on opposite sides of the duct 21 and its protective refractory mass 26 then reunite as they flow downwardly along tube 41 and onto the flange 48. The glass then flows outwardly and down over the preliminary shaping shell 90. The effect of the shell 90 is to control the fiow of glass and to contract the stream somewhat as indicated in the drawing, after which it is subjected to further shaping by the means 86", air being supplied to the interior of the resulting annular stream as previously described. The glass then flows downwardly around the final sizing sleeve 92. After passing the sizing sleeve, the tubing drawn therefrom is permitted to cool and is cut into the desired lengths after it has become rigid.

Figure 16 illustrates a further-modification of the invention which is similar in some respects to those already described. It is a simple construction, fortheinanufacture of small tubing modification, a refractory block i9 similar to the block 15 is secured to the bottom of a tank In. A center hole 96 extends vertically .through the block Is. This hole is reduced in diameter at the lower end. A duct $7 closed at its ends extends transversely through the block I9 intersectingthe hole 96, the portion of the duct within the opening being enclosed in. protective refractory tubing 98. A screw 99 threaded through one of the closed ends we of the duct 81 operates-a wedge It! through the medium of a push rod ifiZ s'wiveled to the screw at H33.

The wedge it! supports a pipe it l which extends downwardly through a tube Hi5 depending from and communicating with. the duct Q1. As shown in the drawings, the wedge till extends through a slot in the upper end of the pipe I04 and engages a bearing pad H36 formed on the inside of the closed end of the pipe. The pipe has radial centering studs H37 engaging the in; terior of the tube N35. The latter is protected by a refractory tube I58 in the same manner as the duct 97. A collar its on the lower end of the tube I65 supports the protectivetube I08. A plug liil having an axial hole therethrough is secured in the lower end of the pipe HM. Radial pins H1 screwed into the plug Hi3 support a plurality of spaced coaxial shells H2 which together ,com-

prise glass-shaping means generally similar to' that previously described.

A refractory disc H3 having a center hole therethrcugh provided with a metal bushing I M is supported below the block IS with its hole coaxial with the hole 85. Centering studs H5 screwed into'the collar H39 engage the interior of the bushing H4. The disc is enclosed in {circumferential segmental straps H6 connected by bolts lil' having sleeves H8 rotatable thereon. The disc is supported by tapered screws H9 threaded through lugs I28 secured to a ring l'2l' forming part of the enclosure for the block 95'.

As shown, the tapered ends of the screws H9 engage the sleeves H8 and force the disc H3 against the bottom of the block it. A'gasket' 22 is disposed between the disc and block.

A "forming chamber J23 generally similar to those shown at 55 and 55' is suspended in the same manner as the latter below the block 95 and is provided with the associated parts illustrated in connection with the forms of the invention already explained, which are omitted from Figure 16 to avoid unnecessary repetition in the drawings and description.

The apparatus shown in'Figure 16 functions in generally the same way as that previously described. 'Air is supplied to the duct 9? through a suitable connection (not shown).

sleeve 98 which protects duct 9'! and it theh fi'owsdown around tube Hi8 which protects tube I05.

through which the wedge l9! projects, and'flow's' through the hole in the plug H i? into theinterlor of the tubing being formed. In this-embodiment the adjustment of the screw 99 adjusts the wedge it i, and this in turn raises or lowersthe pipe 'Ill', If the pipe i 64 is raised to'the limit of its upward movement, the shells H2 are "brought into contact with the block I I3. This shuts off the supply of glass except'for the small amountwhich'will Glass flows downwardly through the holefit and around the pass around the shell of the shaping element positioned. immediately below the orifice. Regu lation of the flow of the glass is efiected by modifying the 'postion of the shaping element with respectto the orifice.

It will be apparent from the foregoing descriptionand explanation that the invention is characterized by numerous advantages over glass-' forming apparatus known heretofore. One of these advantages is thefact that thesusp'e'nsion for the glass-shaping means does not pass through the ntire depth of the molten glass inthe tank. The air supply for the tubing being drawn is introduced at one side of the glass stream flowing downwardly from the tank-only a short distanceabove the shaping. means itself. This arrangement protects the necessary duct; pipes, etc. from contact with the molten glass,-

except over the short distance between the block is and the shaping means suspended therebelow. "lg-The invention provides means for adjusting a portion or all or" the glass-shaping means vertica'1ly,-means for adjusting the sizing means vertically with the shaping means, and means for'regulating the flow or glass, thus facilitating the production of tubing of the desired wall thick-' ness. I also provide means for supplying cooling fluid to the sizing means to prevent overheating. thereof. In addition to the foregoing advan tages, the apparatus of 'my'invention is simple in structure, relatively inexpensive to manufacture and easy to operate and maintain.

Although I have illustrated and described but a preferred embodiment with certain modifications, the construction'and arrangement of the partsdisclosed may be varied-materially without departing irom'the spirit of the inventioh or the scope of the appended claims.

I claim: I "1'. 'Glassware forming apparatus comprising a container for molten glass having a bottom opening, a-refractory block supported against the bot.- tom' of the container and covering a portion of said opening sai'd block having a vertical hole 7 therethrough in alignment with said bottom opening, a

conduit extending horizontally through said block and intersecting said hole, a

tube extending downwardly through said hole.

glass-sizing means mounted on said tube, and pipes extending along'said conduit for supporting and circulating cooling fluid through said tube.

2. Glassware forming apparatus comprising a container for molten glass having a bottom opening, a refractory block suspended against the'bottom of the container and covering a portion of said opening, said blockhaving a vertical hole therethrough in alignment with said bottom opening, means providinga horizontal passage extending through said block, a suspension for glass-sizing means including a vertical tube depending through said hole and pipesbranching from said tube and extending along said passage for circulating. cooling fluid through said tube.

3. Glassware forming apparatus comprising a molten-glass container having a bottom'opening, a refractory block supported 'against the bottom of the container and covering a portion of said opening, said block having a vertical hole there through in alignment with said bottom opening, anair'duct extending horizontally through said block and intersecting said hole, a tube extending downwardly through said hole, glass-sizing means-mounted on said tube, and pipes extending from said tube along said duct for supprtirie- 9 the tube and circulating cooling fluid therethrough.

4. The apparatus defined by claim 1 characterized by means in said conduit for adjusting said tube and pipes vertically.

5. The apparatus defined by claim 1 characterized by means in said conduit for adjusting said tube and pipes vertically and means accessible on the exterior of said conduit for actuating said adjusting means.

6. Glassware forming apparatus comprising a container for molten glass having a bottom opening, a refractory block suspended against the bottom of the container and covering a portion of said opening, said block having a vertical hole therethrough in alignment with said bottom opening, an air duct extending horizontally through said block and intersecting said hole, a tube extending downwardly through said hole, glasssizin means mounted on said tube, pipes extending from said tube along said duct for supporting the tube and circulating cooling fluid therethrough, and a pipe connection for supplyin air to said duct.

7. Glassware forming apparatus comprising a container for molten glass having a bottom opening, a refractory block suspended against the bottom of the container and covering a portion of said opening, said block havin a vertical hole therethrough in alignment with said bottom opening, an air duct extending horizontally through saidblock and intersecting said hole, a tube extending downwardly through said hole, glasssiz ng means mounted on said tube, pipes extending from said tube along said duct for supporting the tube and circulating cooling fluid therethrough, a pipe connection for supplying air to said duct, and a tubular shield surrounding the upper end of said tube, said shield communicating with the duct.

8. Gassware forming apparatus comprising a container for molten glass having a bottom opening, a refractory block supported against the bottom of the container and covering a portion of said opening, said block having a vertical hole therethrough in alignment with said bottom opening, an air duct extending substantially horizontally through said block and intersecting said hole, a tube extending downwardly through said hole, glass-sizing means mounted on said tube, pipes extending from saidtube along said duct for supporting the tube and circulating cooling fluid therethrough, and inlet and outlet connections to said pipes extending through the duct at points outwardly of said block.

9. Glassware forming apparatus comprising a container for molten glass having a bottom opening, a refractory block supported against the bottom of the container and covering a portion of said opening, said block having a vertical hole therethrough in alignment with said bottom opening, an air duct extending horizontally through said block and intersecting said hole, a tube extendin downwardly through said hole, glasssizing means mounted on said tube, a pipe extending from said tube along said duct for supporting the tube and circulating cooling fluid therethrough, inlet and outlet connections to said pipe extending through the duct at points outwardly of said block, and wedge means movable longitudinally in the duct for adjusting said tube, pipe and connections.

10. Glassware forming apparatus comprising a molten-glass container having a bottom opening, a refractory block supported against the bottom 1-0 of the container and covering a portion of said opening, said block having a vertical hole therethrough in alignment with said bottom opening, a forming chamber suspended below said block, a ring having a diameter less than the inside diameter of the chamber supported on the upper end of the latter, and glass-shaping means comprising a plurality of nesting coaxial'shells seated in said rin substantially coaxially with said hole.

11. The apparatus defined by claim 10 characterized by means on said chamber for centering said ring relative to said hole.

12. Glassware forming apparatus comprising a molten-glass container having a bottom opening, a refractory block supported against the bottom of the container and covering a portion of said opening, said block having a vertical hole therethrough in alignment with said bottom opening, a conduit extending through said block and intersecting said hole, a tube extending downwardly through said hole, means in the conduit for supporting the tube, and glass-shaping means, at least a portion of said shaping means being mounted on said tube.

13. Glassware forming apparatus comprising a molten-glass container having a bottom opening, a refractory block supported against the bottom of the container and coverin a portion of said opening, said block having a vertical hole there-v through in alignment with said bottom opening, a forming chamber suspended below said block, a plurality of coaxial, nesting shells disposed sub-. stantially in alignment with said hole, and means for supporting said shells. I

, 14. Glassware forming apparatus comprising a molten-glass container having a bottom opening, a refractory block supported against the bottom of the container and covering a portion of said opening, said block having a vertical hole there- 40 through in alignment with said bottom opening,

a supporting member extending horizontally through said block and intersecting said hole, a support depending from said member, a sizing member mounted on said support, a forming chamber below said block and a plurality of nesting coaxial shells supported in said chamber coaxially of said hole and above said sizing member.

15. Glassware forming apparatus comprising a molten-glass container having a bottom opening, a refractory block supported against the bottom of the container and covering a portion of said opening, said block havin a vertical hole therethrough in alignment with said bottom opening, a supportin member extending horizontally through said block and intersecting said hole, a support depending from said member, a sizing member mounted on said support, a plurality of nesting coaxial shells, at least a part of said shells being mounted on said support above said sizing means, a tubular shield surrounding the upper portion of said support, and a flange on said shield deflecting glass flowing down said shield outwardly to said shells.

16. Glassware forming apparatus comprising a molten-glass container having a bottom opening, a refractory block supported against the bottom of the container and covering a portion of said opening, said block having a Vertical hole therethrough in alignment with said bottom opening, a supporting member extending horizontally through said block and intersecting said hole, a support depending from said member, a sizing member mounted on said support, shaping means positioned above said sizing member, including coaxial nesting shells disposed coaxially with said hole, at least a portion of said shaping means being mounted on said support, and'means fer spreading glass flowing through saidhole and causing it to flow onto said shells.

1"7. Glassware forming apparatus comprising a molten-glass container having a bottom opening, a refractory block supported against the bottom of the container and covering a portion of said opening, said block having a vertical hole there-- thrugh in alignment with said bottom opening, a supporting member extending through said block and intersecting said hole, a support depending from said member, and shaping means including a plurality of nesting coaxial shells, at least a portion of said shaping means being mounted on said support.

1-8. Glassware forming apparatus comprising a molten-glass container having a bottom opening, a refractory block supported against the bottom of the container and covering a portion of said opening, said block having a vertical hole therethrough in alignment with'said bottom opening, an air duct extending horizontally through said block and intersecting said hole, ablow-pipe eittending downwardly through said hole, adjustable means for supporting the pipe, said pipe communicating with said'duct, and glass-shaplng means including a plurality of nesting coaxial shells, at least a portion of said shaping means being me n e n i i e 19 The ap ar us define y claim 18 char" acterize by m ns mo le in. Said t 1111f djusting the blow-pipe supporting means vertically,

30. The apparatus defined by claim 18 characterized by means movable in said duct for 'adjustirig the blow-pipe supporting means and means operable on the exterior of said duct for actuating said adjusting means.

21. Glassware forming apparatus comprising-a molten glass container having a bottom open.- ing, a refractory block supported against the bottom of the container and covering a portion of said opening, said block having a verticalv hole therethrough in alignment with said bottom o enin a supporting member extending horizontally through said block and intersecting said hole, a support depending from said member, a sizing, member positioned on said support, and shaping means positioned above said sizing memher, said shaping means including coaxial nesting shells disposed coaxially with said hole, at least a portion of said shaping means being mounted OILS i su port r 2 2, Glassware forming apparatus comprisinga source of molten glass, a wall having an orifice therethrough communicating with the source of molten glass and providing a downwardly flowing stream of molten glass,v a conduit intersecting said orifice, and means for controlling the flow of glass through said orifice, said means comprising a control member adapted to cooperate with the said wall adjacent the orifice and operating means extending into and through at least a part of said conduit and connected to said control m m er- 23. Glassware forming apparatus comprising a source of molten glass, a wall having an orifice therethrough communicating with the source of 12 molten glass and providing a downwardiy flow}.- ing stream of molten glass, a conduit intersect,

ing said orifice, a shaping element positioned to receive the downwardly flowingstream of glass, and means extending into the conduit and con-. nectedto the shaping element for adjusting at least a portion of the shaping element relative tosaid wall containing said orifice for controlling. the How of glass therethrough. V 5

24. Glassware forming apparatus comprising a source of molten glass, a wall having an orifice there'through communicating with the. source of molten glass and providing a" downwardly flowing stream of molten lass, a conduit intersecting said orifice, a shaping element positioned to re-. ceive the downwardly flowing stream 'of glass; means extending into the conduit for supporting the shaping element, and means for adjusting the shaping element supporting means vertically with respect to said wall' containing said orifice 25'-. Glassware forming apparatus comprising'a source of molten glass, a wall having an orifice therethrough communicating with the source of molten glass and providing a downwardly flowing stream of molten glass, a conduit intersecting said orifice, a hollow shaping element positioned to municat'ing with the interior thereof, and means 7 extending into the conduit and connectedto the shaping element, blow'pipe supporting means, for

adjusting the blow pipe and vertically with reference to the wall containing said orifice.

' 26. Glassware forming apparatus comprising a source of molten glass, a wall having an orifice therethrough communicating with the source qf molten glass and providing a downwardly flowing stream of molten glass, a conduit intersecting said orifice, a shaping element positioned to receive the downwardly flowing stream of glass, a hollow sizing member positioned below the shaping ele ment, means for supporting'the si ing member and shaping element within the downwardly flowingbody of glass, said supporting meansinclud ing a'pipe extending through said conduit and communicating with'sa'id sizing member for sun.- plying cooling fiuid interiorly of'the sizing mem;

her, and means in said conduit for adjusting-said supporting means relative to the wall containing said orifice. 7 1

' EDWARD; A NE I REFERENCES 'GI'LED- Thev following references are ot r'ecord in the file of this patent:

UNITED' STATES PATENTS Number ame. .Date a 1,507,852 Pleukharpet al. Sept; 9,1924 ,6 3,9 7 Ferneren ..--.V-.- a Ju e .9 1.928 2,131, Bann r 1-, .1 S pt, 2.7, 1938 FOREIGN BATEN-Ts Num min! a V V Bate '7 381,582 Great Britain Sept. 29, 1932 543,172 Great Britainf QQ Feb, 12,1942

Certificate of Correction Patent N 0. 2,462,806. February 22, 1949. EDWARD DAN N ER It is hereby certified that errors appear in the printed specification of the above numbered patent requiring correction as follows:

Column 5, line 58, after the Word glass insert stream; column 7, lines 42 and 49 respectively, for block 95 read block 19; line 63, for onto he read onto the;

and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Oflice.

Signed and sealed this 30th day of August, A. D. 1949.

[SEAL] THOMAS F. MURPHY,

5 Assistant (l'ommissioner of Patents. 

